The author disclaims copyright to this source code. In place of a legal notice, here is a blessing:

May you do good and not evil. 
May you find forgiveness for yourself and forgive others.
May you share freely, never taking more than you give.

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from https://www.sqlite.org/src/info/689401a6cfb4c234 and memorialized here https://spdx.org/licenses/blessing.html